Home / 15,945.70-22,005.17-8,872.57

Finding the Fourth Proportional to 15,945.70, 22,005.17 and 8,872.57

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Solution

The fourth proportional to 15,945.70, 22,005.17 and 8,872.57 is: 12,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.70 : 22,005.17 = 8,872.57 : x
  2. Step 2: Convert to fraction form
    15,945.70/22,005.17 = 8,872.57/x
  3. Step 3: Cross multiply
    15,945.70x = 22,005.17 × 8,872.57
  4. Step 4: Simplify right side
    15,945.70x = 195,242,366.82
  5. Step 5: Solve for x
    x = 195,242,366.82/15,945.70
  6. Step 6: Final answer
    x = 12,244.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.